Fire-brick arch.



E. P. STEVENS. FIRE BRCK ARGH APPLIUATION FILED Nov.27,1so. 4

Patented Aug. 3, 19094 2 SHEETS-SHEET l.

/lrro AWE? E. P. STEVENS.

PIRE BRICK ARCH.

APPLICATION ULB@ Nov.27.19os.

929,724. Patented Aug. 3, 19119.

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ENOOH P. STEVENS, OF CHICAGO, ILLINOIS.

FIRE-Baron ARCH.

ne. estense.

. Specification of Letters Patent.

'Patented Aug. 3, 1909.

applicarsi sied November 27, 190s. seniNo. 464,728.

illicit' whom it may concern:

ffe it known that I, ENOCH P. STEvENs, a citizen of' the 1United States, and a resident Chicago, in the county of Cook and State illinois, have invented certain new and e following, when taken in con- .icn with. the drawings accompanying 'n part hereof, isla full and com. i M.. inscripcion, sufficient to enable those stilisti in the art to which it pertains to une, and use the same.' icnlrelates to fire brick arches :ter '.ire boi-res, of locomotives and other like sie, which will arrest a considerable the saine in said fire box; and ch, willnot to any practical degree interivith, or reduce the draft of the fire box.

lli. further object of the invention is to provide e device Twhich can be readily installed i 'otherwise completed.

l'. have illustrated 'he device embodying invention in the drawings referred to in iii-hi@ Ijignre i. is a side elevation ofone of the `tire bricks forming an element in the device.

Fig. is a bottom plan view of the fire brick illustrated in, Fig. l.. Fie. 3 is a sectional view' of the fire brick, on line 3-3 oflFig. l, viewed in the direction indicatedby the arrows. Fig. i is a side elevation of a brick,- additional to the brick illustrated in Figs. l, 2 and 3, forming an element. in a device embodying" the invention. Fig. 5 is a top plan `view of the i're brick illustrated in Fig. i. Fig. 6 is an end view as indicated by theline tS-- of Fig. 4.- looking in the direction desiglia-ted by the arrows, showing the brick illustrated in ifig. Fig. 7 1s a front elevation of the iire box. of a locomotive with the front i Irnfnovenients in Fire-,Brick Arches,A

i the cinders produced by the constron el; coal (or wood) 1n the fire box ,tocornotive after the re box thereof hasV wall and grate thereof, removed, showing the device embodying my invention installed in said tire box; and Fig. 8 is a vertical sectional view on the median line of the device, as 011 line 8--8 of Fig. 7, viewed in the direction designated by the arrows.

A reference letter applied to indicate a given part is used to indicate said part throughout the several figures of the drawings,- *wherever the same may appear.

A (Figs. 'I and 8) is the fire box, which is provided with an "ordinary grate, (not shown.)

B, B, are water legs arranged around the lire box on the back, sides and front thereof 'in the ordinary way.

C, C, are hollow bars or pipes,l respectively communicating with the 'water legs in the back and frontof the tire box A. The ends of pipes C, C, lwhich connnunicate with the water leg at the back of the lire box are higher than the ends which connnunicate with the water vleg atthe front of the tire box so that the flow of water therethrough is from the front water leg to the back water leg.

D, D', and E, E, are fire bricks or tiles, re

nspectively, arranged in .pairs on pipes C, C,

to form a baille plate, in the form of a corrugated arch. Thebricks D, D', are rights and lefts and are respectively, provided with the body part rl, the ends d' and the legs d". The body part .of the bricks D, .D' are respectively provided on the-upper face thereof with single corrugations d' lower face thereof with a plurality of corrugations c". The bricks or tiles E are respectively provided With the body portion e and the end portion c', and said end portion c is provided on the ul'ider side thereof with the longitudinal grooves, recesses or corrugations c", c". The bricks or tiles ll are also respectively provided with a `longituohnal groove d'" on the upper face of the body portion thereof, corresponding with groove on the bricks or tiles D, D'. The meeting ends of the bricks or tiles D, D', and E,

are respectively provided with the vlaterally extending recesses or grooves F.

' Gr is a bar arranged to lie between the meeting ends of bricks or tiles D, D', and E, E, in recesses F, F.

, and on the In assembling the several parts to obtain a device embodying the invention the hollow bars or pipes C, C, are first installed. The

bricks or tiles D, D,'are then laid on suchl .pipes C, C; a .right vand left one of saidbricks oritiles are used and the ends d', d', are chipped or broken ed to bring the meeting edges of said bricks or `tiles together with a suitablecloseness of fit'. Said bricks or tiles are also arranged se that the ears or legs d,

el, are 'against the wall of the water leg inV front of the fire box. Bricks or'tilesE are then fitted on the hollow bars or pipes. C,-C,

adjacent to the bricks or tilesV D,D-by

breaking or chipping the ends d'jtliereof, as required. Additional bricks or' tiles-E are..

-ittedin 'place' on hollow rods or pipes', l), in like manner'until lthe battle plate is of the desiredsize. The bar Gr, is inserted in place in .recesses 19,1?, to,l form a keyto hold vthe` bricks ortilesin place. l l'Vhen-the several-*parts are .assembled as described, passage way H, adjacent-to the front water leg passageways tif/L', 'adjacent to the side water legs, and the large passage or space H, between the rear end of the device and the back rwater leg, are obtained.V

The products of combustion in the lire box necessarily flow through' the passage waysl H, it, and H from the'ire box 'A to the.,

iues and smoke stack of the locomotive.

The grooves, recesses or corrugations c inthe bricks or tiles D, D, and E,.when the severalparts are assembled, extend transversely across the lire box and particularly i tend to arrest. and to return the burning fuel,

' the cinders whichcome in contact'with such.V

bricks or tiles onl the under side of theV arch, and the grooves or recesses d also extendl I' ing transverselycf the fire boxtend to arrest and hold lodged therein,` cinde'rs and ashes which are carried, by the draft, throughv passage way H from the fuel in the firebox to the upper surface the device.

The heated condition of the device, when' steam is being generated, andits' location, increase the eiiciency of the combustion chainber obtained inthe upper portion of the lire box, and the quantity of cinders and ashes carried through the fluesisl materially re- I duced by the use 4ci' this'device. The bricks D andlil are arranged inplace to form the baille plate, as described, and the several project-ions e el., and d are arranged toproduce passa/ge ways for thel products of lcom-pr.y

bustion tc flow fbm below the baille plate to the .upper surface thereof and also to deflect lsuch products against the' inner walls of the water legs of theire box.- y Said" projections also present parts J which may' be. chipped' easily to obtain a good lfit'of the-arch in the.

tire boxD By making thesei/'eralk brick, or tileD, D",

and E with the. recesses or corrugations l thereon, asdescribed, I'not only obtain the advantages Thave named, but in addition theretolam able td make thevends of such fire bricks, eaih "thereof, arranged to bind theY of all the rowsy together;

beaver' brick a ai@ deeper', with the Seme weight thereto,- than when the upper and .under faces lthereof are smooth, (not corrugated.) This is especially advantageous relative tothe meeting edges in' which the groove or recess l" is placed.

.The hollow pipes C are not 'necessarily used as the-arch willmaintain itself in positijon in the lire box after the barfhas been inserted in recesses F, F, and the thickness ofthe `fire bricks at the meeting edges theref of maybe made' so great, because of .the lightness'resulting from the making 0f the corrugations 'herenbefore described, that a permanentarcl'i is obtained even without the Having thus described. my invention,-

what l claim 'asinew and desire to secure by 'Lette-rs Patentfis,

1. A tire bcx,.in combination; with an arch consisting fof a plurality of rows fof lire bricks, each row containing a plurality of.

- bricks respectivelyprovided 'with longitudinal recesses on the under and upper faces y,

vof all the rows together.

2i A fire box provided with waterlegvsin frontjand back thereof, in combination with an arch consisting of`aplurality'oil 4rows of ctively provided with longil tudinal recesses on the .under and upper faces thereof, such recesses v terminating' short; of the meeting edges ofthe rows of of bricks resp row containing a pluralityv '.-support '.\t'lii'ch furnished. by the hollowv4 lbars (C, C.)

bricks, and with Vtransverse recesses at their :meeting edges, hollow pipes communicating with' said water legs, said bricks mounted on `t e hollow pipes and aba'r between the meeting edges of thel brick, the transverse recesses thereof arranged to bind the meeting bricks of all the rows together.

l lll 8. A lire box` provided with Water legs in' y the front `and `back thereof, in combination with. an arch consisting ofl a pluralrty 0f rows ofire brick, each row. cont minga lplurality of bricks, aleg on one en of'each brick arranged to vabut the'side of the lire box and said bricks provided with longitudinal-recesses onfthe under and upperfaces thereof, said recesses terminating'short-,of

the meeting edges of the rows of' bricks and with transverse recesses `arranged V'at the ends .forming the meeting edgesV thereof, hol low pipes communicatingwith said water '1cgs,saidbricks -munted on the hollow pipes, 'and a bar between the meeting edges.

of the brick in the transverse *recesses .'fneetingl bricks legs, said bricks mounted on the hollowand said bricks provided with longitudinalrecesses on the under and upper faces thereof, said recesses terminating short of the meeting edges of the rows .of bricks, and( with transverse recesses arranged at the ends formingy the meeting edges thereof, hol- A low pipes communicating with said water I zpipes, anda bar between the meeting edges of the brick in the transverse recesses there v'ided with water legs, hollow pipes coinmunicating with the water legs in the front and back of said fire-box, rows of bricks on said pipes forming an arch, said bricks being-provided with recesses on the upper and under faces thereof, said recesses terminating short of the meeting edges of the rows of bricks, andalso with recesses in the meeting edges of the rows of bricks, legs on the bricks adjacent to the sidevwater legs of the fire box of less cross sectional area than the bod5T part ot' said brick, additional legs on' the bricks which are adjacent to the front water leg, said re bricks arranged -to obtain passage ways between the front andback and rear water legs and themselves and a bar between the ends of the rows of bricks in the transverse recesses thereof, arranged to bind the meeting bricks of all the rows together.

. ENOCH P. STEVENS.-

vln the presence ol- CHARLES TURNERv BnowN, Com A. ADAMS. 

